Does pamac 6 has some undocumented keyboard navigation?
Here are some I found:
ctrl+f to search, not in detail page
Alt+left to return from detail page.
Alt+A to applied
ctrl+w to close
up/down to choose from search history in searchbox

Tab behavior:
when search is focused, Shift+tab to switch focus to sidepanel, then use up/down key to chose from repo or aur. But failed if no package found in repo or viseversa.
Also, up/down key to go through search history, Tab then Space to open up history dropdown. Another tab to search result and navigate w/ arrow and tab key.

I am so grateful for Pamac 6.
Just out of curiosity I ran it and after a whole year of failed attempts - there it was!
ADIE. A useless piece of soft that i can install and uninstall at a whim. At long last!

Update seemed to go flawlessly. However, since the restart, my bluetooth speaker always disconnects after a few moments or when I execute any other command/start an application. After that, I can’t reconnect with the speaker until I switched bluetooth off and on again, at which point the whole story starts from the beginning.

4.13.1 worked for me - 4.13.2 boots, but none of the usb devices are working on my main pc (3 others are doing fine with 4.13.2).
Checked journal, but couldn’t find anything fishy. Reverted to 4.9 for the meantime.